Combustible charge forming attachment for internal combustion engines



p 1936. c. DEL VALLE 2,052,608

COMBUSTIBLE CHARGE FORMING ATTACHMENT FOR INTERNAL COMBUSTION ENGINES Filed Oct. 7, 1935 2 Sheets-Sheet 1 Eidbl. J

C. DEL VALLE Sept. 1, '1 936.

GOMBUSTIBLE CHARGE FORMING ATTACHMENT FOR INTERNAL COMBUSTION ENGINES 2 Sheets-Sheet 2 Filed Oct. 7, 1935 Elma/WM C'arlos dell idle Patented Sept. 1, 1936.

UNITED STATES PATENT OFFICE GINES Carlos del Valle, Mexico, D. F., Mexico Application October 7, 1935, Serial No. 43,980 In Mexico May 8, 1935 2 Claims.

This invention relates to a combustible charge forming attachment for internal combustion engines, and has for its object to provide, in a manner as hereinafter set forth, an attachment of the class referred to for supplying a mixture of air and water vapor to and for mixing with a combustible charge on the passage of the latter towards the combustion chamber of the, engine whereby the emciency of the operation of the engine materially increased.

The invention further aims to provide, in a manner as hereinafter set forth, an attachment for the purpose referred to, when used reducing the formation of carbon deposits to a minimum, as well as reducing the costs of engine operation.

Further objects of the invention are to provide, in a manner as hereinafter set forth, an attachment for the purpose referred to which is simple in its construction, strong, durable, for installation with respect to the radiator overflow pipe and the intake manifold of the engine, readily installed, thoroughly eflicient in its use, conveniently repaired when occasion requires, and comparatively inexpensive.

With the foregoing and other objects in view, the invention consists of the novel construction,

combination and arrangement of parts as will be hereinafter more specifically described and as are illustrated in the accompanying drawings wherein are shown embodiments of the invention, but it is to be understood that changes, variations and modifications may be resorted to which fall within the scope of the invention as claimed.

In the drawings:

Figure 1 is a side elevationof an internal combustion engine showing the adaptation therewith of a combustible charge-forming attachment in accordance with this invention,

Figure 2 is a vertical sectional view of the combined air intake, water vapor receiving, air and water vapor mixing and mixture supply device of the attachment,

Figure 3 is a top plan view of the device shown in Figure 2,

Figure 4 is a side elevation, broken away of the water vapor conduit,

Figure 5 is a vertical sectional view of the ele- I Figure 8 is a top plan view of still another modifled form of combined air intake, water vapor receiving, air and water vapor mixing and mixture supply device for use in connection with V-motors, and

Figure 9 is a side elevation, broken away of a modified form of water vapor conduit.

With reference to Figure 1 of the drawings an internal combustion engine is indicated at I9, its radiator at H, its carburetor at l2, and its intake manifold at i 3. The manifold I3 is formed of an upper section I4 and a lower section l5 end- Wise aligning with section Hi. The opposed ends of the sections l4, l5 are formed with laterally extending apertured flanges I6, I! respectively. The section I5 opens into the carburetor l2. The overflow pipe of the radiator I I is indicated at l8. The pipe l8 has its upper end spaced from the top of the radiator l I. The lower end of pipe l8 depends below the bottom of the radiator. The extended lower end portion IQ of pipe I8 is peripherally threaded.

The attachment includes a combined air intake, water vapor receiving, air and water vapor mixing and mixture supply device. Three forms of these devices are shown, one by Figures 1, 2 and 3, generally indicated at 20, another by Figures 6 and 7 generally indicated at 2|, and the other by Figure 8 generally indicated at 22. The attachment also includes a water vapor conduit. Two forms of conduits are shown, one by Figure 4 generally indicated at 23 and the other by Figure 9 generally indicated at 24. The attachment further includes a water surging preventing element shown by Figures 1 and 5 and generally indicated at 25.

The device 20 includes a body part 26 which is interposed between the intake manifold sections I 8, l5 and clamped to the flanges i 6, i! by the holdfast devices 21. The body part 25 is formed of circular tubular portion 28 having a pair of oppositely extending radially disposed slotted arms 29 at its sides through which the holdiast devices 21 pass. Integral with the front of portion 28 and spaced from the arms 29 is a squared extension 39. The ends of the body part 26 are oppositely flanged, as at 3|, 32 having their edges flush with the edges of the flanges l6, I! when the device 20 is secured to the manifold l3 between the sections of the latter. The extension 30 is arranged between and projects outwardly from the front sides of the flanges 3|, 32. The portion 29 forms a passage 33 having its wall 34 registering with the inner faces of the sections of the manifold i3. The inner side of the wall 34, in alignis formed with a horizontally disposed opening 36 communicating at its inner end with passage 33 and having a threaded wall.

Formed integral with the outer end of extension 30 is an outwardly directed shank 31 *ar ranged above the flange 32. A portion of the upper face of shank 31 is flush with the upper face of extension 36. The shank 31 is of less width than the width of extension 30 and has its upper face provided with a tapered enlargement 38 which merges into the outer side of body part 26 above the extension 38. The outer end of enlargement 38 is spaced inwardly of the outer end of the shank.

The device 20 is formed with a mixing chamber 39 for air and water vapor. The chamber is open at its outer end and extends from the outer end edge of the shank to within the extension 30. The outer end of opening 36, in body part 26 communicates with the inner end of the chamber The wall 46 of the latter at its outer end portion is threaded as at 4 I. outer end edge of the shank is an annular sealing gasket 42. Threadedly engaging with the threads 4| is a peripherally threaded sleeve 43 which is formed with internal threads 44 and at its outer end with a laterally extending annular flange 45 abutting the gasket 42. The latter encompasses the sleeve 43 and is clamped against the shank by flange 45. The shank in proximity to its outer end and in its top is formed with a vertically disposed threaded opening 46 which communicates with the chamber 39 adjacent the inner end of sleeve 43. The top of the shank between opening 46 and its inner end is provided with a vertically disposed threaded opening 41 which communicates with the chamber 39. Threadedly engaging with the wall of opening 46 is the reduced peripherally threaded lower end 48 of the vertically disposed body part 49 of a water vapor controlling inlet valve mechanism 56 for the chamber 39. The said body part 49 is formed with a valve chamber 5| lengthwise thereof, an upper and a lower peripheral shoulder 52, 53 respectively and an intake 54 opening into the upper end of chamber 5|. The upper wall of chamber 5| is indicated at 55, is rounded and constitutes a seat for a globular spring controlled valve 56. The lower wall of chamber 5| is provided by the upper end of a tubular member 51 which is threadedly secured in the said reduced lower end 48. The member 51 provides an outlet 58 for the valve chamber 5| which opens into the mixing chamber 39. The member 51 also provides an abutment for the controlling spring 59 for the valve 56. The spring 59 is of the coiled type and is interposed between the upper end of member 51 and valve 56. The upper end 59 of body part 49 is reduced and peripherally threaded. The intake 54 is disposed lengthwise of body part 49, opens at the upper end of the latter and also opens into the upper end of the chamber 5|. Surrounding the said reduced lower end 48 and clamped against shank 31 by shoulder 53 is a sealing gasket 68.

Threadedly engaging with the wall of opening 41 and extending above shank 31 is an air intake controlling valve structure 6| for chamber 39. The structure 6| includes a peripherally threaded body part 62 formed with a valve chamber 63 and an annular flange 64 at its upper end. The upper wall 64 of chamber 63 is rounded and constitutes a valve seat for a spring controlled globular valve Positioned against the.

65 arranged in chamber 63. The body part 62 is formed with an intake 66 which opens at its upper end at the top of said body part 62 and at its lower end opens into the upper end of chamber 63 through wall 64. The lower wall of chamber 63 is provided by a tubular member 61 which is threadedly secured within body part 62. The member 61 forms an outlet 68 for chamber 63. The outlet 68 opens into chamber 39. The member 61 also provides an abutment for the coiled controlling spring 69 for valve 65. The spring is interposed between member 61 and valve 65. Positioned on shank 31 and encompassing body part 62 is a sealing gasket 10 which is clamped against the shank by the flange 64.

Carried by the body part 26 and extending diametrically of the passage 33 is a mixture supply element 1| formed of a tubular flanged head 12 and a tubular stem 13 having a conoidal shaped closed free end 14 which seats in the cavity 35. The inner diameter of the head and stem are the same. The element 1| forms a conducting channel 15 for the enriched mixture which is discharged into passage 33 by a set of spaced ports 16 formed in the top of the stem 13. The head 12 is of greater outer diameter and of less length than that of stem 13. The flange on head 12 is at its outer end and is indicated at 18. The flange 18 is arranged within chamber 39. The head 12 is peripherally threaded, mounted in and engages with the threads of the wall opening 36. The channel 14 is open at one end at the flanged end of the head and has its other end closed by the end 15 of the stem 13. The wall of channel 14 at its inlet or open end is beveled to provide a valve seat 19 for coacting with an adjustable needle valve 88 for controlling the intake of the mixture to the channel 14 from the chamber 39. The stem 8| of valve 88 is rotatable and has its outer portion peripherally threaded, as at 82. The stem 8| passes through and has threaded engagement with the internal threads of sleeve 43. The stem 8| projects outwardly from the shank 31 and carries a lock nut 83. Arranged between the outer end of sleeve 43 and the nut 83 is a seating gasket 84. The outer end of stem 8| carries a thumb or finger grip 85 to facilitate the adjustment thereof.

The element 25 is positioned in and extends above the intake end of the radiator overflow pipe l8 and functions to prevent the surge of water into pipe I8, but does not prevent the water vapor from entering the pipe. The element 25 comprises a tubular body part 86 having a reduced resilient bifurcated lower end portion 81, an annular peripheral shoulder 88 and a plurality of intake openings 89. The body part 86 is'open at its lower end and closed at its upper end by a. conoidal shaped cap of greater diameter than the body part 86. The reduced end portion 81 of body part 86 is extended into and frictionally engages with the inner face of pipe I 8. The shoulder 88 seats on the top edge of pipe Hi. The water vapor passes through the openings 89 into pipe l8.

The water vapor conduit 23 which associates a flange 93 for connecting the collar to a band. The collar 90 coacts with the reduced upper end 59 of body part 29 for connecting the hose 9i to the valve mechanism 50. The collar 05 coacts with the threaded lower portion IQ of pipe I8 for connecting the hose 9! to the radiator overflow pipe I8 whereby on the suction stroke of the engine water vapor will be conducted by the conduit 23 and supplied to chamber 30. On the suction stroke of the engine air will be pulled into chamber 39 and mixed with the water vapor to provide the mixture for the combustible charge. On the suction stroke of the engine the enriching mix ture will be drawn into passage 33 and mixed with the combustible charge traveling through passage 33 whereby the combustible charge will be enriched, as well as the enriching mixture also acting tobreak up the globules in the combustible charge. The enriching of the latter materially increases the emciency-of the operation of the engine.

The device 2i is not interposed between the sections of an intake manifold but extends into the latter. With reference to Figure 6 there is shown a non-sectional'intake manifold 33 formed in its front side with a threaded opening 90 for the extension therein and diametrically thereof of an enriching mixture supply element I00 forming a part of the device 2i. and which will be more .fully referred to. The device 2i includes a tubular casting I05 open at each end and which coacts with hereinafter referred to parts of the device 2I to provide a water vapor and air mixing chamber I02. The top of casting II is formed with a threaded opening I03 which communicates with chamber I02 and has secured therein an air inlet valve mechanism I03 of the same form and arrangement as that of the valve mechanism 0i. The top of casting IOI outwardly adjacent to the opening I03 is provided with a threaded opening I05 which communicates with chamber I02. Secured within opening I05 and extending upwardly from casting IN is a water vapor inlet valve mechanism I06 of the same form and arrangement as the valve mechanism 50, with this exception that thereduced upper end portion I07 of the body part I03 of mechanism I06 is formed with superposed annular peripheral grooves I09 instead of it being peripherally threaded as is the reduced upper portion of the g body part 09 of mechanism 50. The bottom of casting IN is formed with a threaded opening I09 normally closed by a flanged plug H0. The

opening I09 constitutes a drain for chamber I02.

A sealing gasket III is interposed between the flange 2 of plug H0 and casting IN.

The outer end portion of the wall II3 of the chamber I02 is formed with threads Ill. The

outer end wall of chamber I02 is provided by a sleeve H3 formed with external and internal threads throughout. The sleeve H5 has threaded engagement with the threads I I4. The outer end of sleeve I I5 is formed with a laterally extending annular flange Ilii. Positioned between the outer end of casting II" and the flange H6, as well as encompassing sleeve I I5 is a sealing gasket III which is clamped in position by the flange 6 when sleeve H5 is secured within the casting NH.

The element I00 is an integral structure and includes a tubular head H8 and a tubular stem H9 which is integral at the outer end with the inner end of the head H8. The inner end I20 of stem 9 is closed and is of conoidal contour. The head H8 intermediate its ends is formed with a laterally extending annular peripheral flange I2I. The periphery of the head adjacent each side of the flange I2I is threaded throughout as at I22, I23. The inner diameter of the head and stem are the same. The element IOI provides a channel i2 for conducting mixture into the mani- 5 fold 98 for the purpose of mixing with and enriching the combustible charge as it travels through the passage I26 provided by the manifold 98 in a direction towards the combustion chamber of the engine. The enriching mixture is discharged into the passage I24 through a series of spaced ports I20 formed in the top of the stem I I9. The head H3 at its inner end extends through the opening 09 into passage I20 The stem H9 is disposed diametrically of passage I24 The head H8 is anchored to the manifold 98 by the engagement of the threads I23 with the threads on the wall of opening 99. The flange I2I abuts the outer periphery of manifold 98. The outer end of head 8 extends into the inner end 20 of casting IN and provides the inner end wall of chamber I02. The wall H3 of the chamber I02 is formed with threads I26 which coact with the threads I22 for anchoring element I00 to cast ing Iili. Surrounding the head H8 and interposed between the inner end of casting IM and flange I2I is asealing gasket I21. The wall I28 of the channel I25 at the outer or intake end of the latter is beveled to form a valve seat I29 which coacts with an adjustable needle valve I30 of the same form and arrangement and for the same purpose as the needle valve 80. A look nut I3I and sealing gasket I32 is associated with needle valve I30.

'The water vapor conduit 25 is of the same construction as the conduit 23 with this exception that the hose I33 of conduit 24 is not provided with a coupling collar at each end. The hose I33 has a flanged band I34 at one end carrying a coupling collar I35. The other end of hose I33 has an enlarged tubular resilient head I36 for receiving and engaging in the grooves of the reduced upper portion I01 of the body part I08 of the valve mechanism I05 whereby the latter will be frictionally coupled to the hose I33. The collar I35 is connected to the lower depending portlon I9 of the radiator overflow pipe I8.

The device 22 is of the duplex type for use in connection with a twin passage manifold employed for a. V-motor. With reference to Figure 8 the device 22 includes a body part I37 formed with a pair of spaced passages I38, I39. The body part I31 is adapted to be interposed in a manifold, not shown of the twin passage type and the passages I38, I39 of body part I31 are adapted to register with the passages of the manifold. The body part I31 has openings I40 for the passage of'holdfast means, not shown to anchor it to the manifold. Extending outwardly from the front side of body part I31 is a pair of spaced shanks I4I, I42 and each of which is constructed substantially in the same manner as shank 31. A pair of mixture supply elements I43, I are employed and each of which is similar in construction, for the same purpose, and arranged in a similar manner as the mixture supply means as set forth by Figures 2 and 3. A pair of water vapor inlet valve mechanisms I45, I46 form parts of the device 22 and each of which is similar in construction, for the same purpose and arranged in the same manner as mechanism 50. A pair of air inlet valves I41, I48 also form parts of the device 22 and each of which is similar in construction,

manner as mechanism BI, and a pair of needle valves I49, I50 form parts of the device 22 and each of which corresponds in structure to, for the same purpose and arranged in a similar manner as needle valve 80. Sealing gasket II, I52 corresponding to and arranged in the same manner as gasket 42, 84 respectively also form parts of device 22.

The water vapor conduit which will be used in connection with device 22 will correspond to conduit 23, with this exception that it will be branched for the purpose of coupling it to the valve mechanisms I45, I46.

The devices 2|, 22 will function for the same purpose as the device 20.

What I claim is:

1. In a combustible charge forming attachment for internal combustion engines, a horizontally disposed internally threaded hollow part, an internally and externally threaded hollow structure extending into and threadedly engaging with said part closing one end of the latter, a stationary tubular element closed at its outer end and having its inner face at its inner end formed with a valve seat positioned within said part, said element extended laterally from said part and being formed in its top, in-- termediate its ends, with mixture discharge openings, said structure, said valve seat forming end of said element and said part coacting to provide a Water vapor and air mixing chamber opening into the inner end of said element, a

water vapor intake element anchored to said part, opening into said chamber and including a resiliently supported controlling valve, an air intake element anchored to said part, opening into said chamber and including a resiliently supported controlling valve, and a mixture discharge controlling element extending through and threadedly engaging with said structure and coacting with said seat.

2. In a combustible charge forming attachment for internal combustion engines, a horizontally disposed internally threaded hollow part, a vertically disposed hollow part integral with one end of said horizontal part, said vertical part being formed with a threaded opening leading from one of said parts to the other, an internally and externally threaded hollow structure extending into and threadedly engaging with said horizontal part for closing one end of the latter, a stationary tubular element closed at one end and having its inner face at its other end formed with a valve seat positioned at the other end of said horizontal part, said element extended laterally from said horizontal part, threadedly engaging with the wall of said opening, extending across said vertical part and being formed in its top intermediate its ends with mixture discharge openings, said structure, the said valve seat formingend of said element and the said horizontal part coacting to provide a water vapor and air mixing chamber opening into said element, a water vapor intake element anchored to said horizontal part, opening into said chamber and including a resiliently supported controlling valve, an air intake element anchored to said horizontal part, opening into said chamber and including a resiliently supported controlling valve, and a mixture discharge controlling element extending through and threadedly engaging with said structure and coacting with said seat.

CARLOS DEL VALLE. 

